Phosphorus, Sulfur and Silicon and the Related Elements p. 123 - 136 (2002)
Update date:2022-08-04
Topics:
El-Gazzar
Hegab
Swelam
Aly
Several 3-substituted-(un)-cyclohepta(b)thieno[2,3-d]pyrimido[3,4-a]-1,2,4-triazoles 10, 11, 12, 13, and 14 were prepared by reaction of an appropriate substituted 2-amino-3-cyanothiophene 1 with aliphatic acids or benzoyl chloride. Also the fusion of 1 with urea, thiourea to give the corresponding 2-oxo or thioxo-4-aminopyrimidine derivatives 6a, b and other reactions of compound 1 are reported.
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Doi:10.1021/ja01049a047
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(2001)Doi:10.1016/S0040-4039(01)01597-0
(2001)Doi:10.1007/BF00476317
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